function getXMLHTTP() { //fuction to return the xml http object
		var xmlhttp=false;	
		try{
			xmlhttp=new XMLHttpRequest();
		}
		catch(e)	{		
			try{			
				xmlhttp= new ActiveXObject("Microsoft.XMLHTTP");
			}
			catch(e){
				try{
				req = new ActiveXObject("Msxml2.XMLHTTP");
				}
				catch(e1){
					xmlhttp=false;
				}
			}
		}
		 	
		return xmlhttp;
	}
function getSubCat(strURL)
{  

     var req = getXMLHTTP(); // fuction to get xmlhttp object
     if (req)
     {
      req.onreadystatechange = function()
      {
		 
		  if (req.readyState == 4)
		  { //data is retrieved from server
		 	   if (req.status == 200)
			   	{ // which reprents ok status 
					 document.getElementById('subCatDiv').innerHTML=req.responseText;
				}
		       else
		       { 
				 alert("There was a problem while using XMLHTTP:\n");
		       }
    	   }            
      }        
    req.open("GET", strURL, true); //open url using get method
    req.send(null);
	}
}
function PopupCenter(pageURL, title,w,h) {
var left = (screen.width/2)-(w/2);
var top = (screen.height/2)-(h/2);
var targetWin = window.open (pageURL, title, 'toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=no, resizable=no, copyhistory=no, width='+w+', height='+h+', top='+top+', left='+left);
}
function cck() {
if ($("#airlineid").val()=='') { document.getElementById("airlineid").className = 'fme'; $("#airlineid").focus(); return false;} else { document.getElementById("airlineid").className ='fmm';}
if ($("#fromid").val()=='') { document.getElementById("fromid").className = 'fme'; $("#fromid").focus(); return false;} else { document.getElementById("fromid").className ='fmm';}
if ($("#toid").val()=='') { document.getElementById("toid").className = 'fme'; $("#toid").focus(); return false;} else { document.getElementById("toid").className ='fmm';}
if ($("#datefrom").val()=='') { document.getElementById("datefrom").className = 'fme'; $("#datefrom").focus(); return false;} else { document.getElementById("datefrom").className ='fmm';}
if ($("#direction:checked").val()!=null && $("#xdateto").val()=='') { document.getElementById("xdateto").className = 'fme'; $("#xdateto").focus(); return false;} else { document.getElementById("xdateto").className ='fmm';}
return true;
}
function bookmark() {
	if(window.sidebar) { window.sidebar.addPanel(document.title,document.location.href,""); }
	else if( document.all ) { window.external.AddFavorite(document.location.href,document.title); }
	else { alert("Rất tiếc! Trình duyệt của bạn không hỗ trợ đặt Bookmark!"); }
}
function bookmarksite(title, url){
	if (document.all)
	window.external.AddFavorite(url, title);
	else if (window.sidebar)
	window.sidebar.addPanel(title, url, "")
}
function h() {
	document.writeln('<embed flashvars=\"link=#\" src=\"http://www.vtidgroup.com.vn/images/h.swf\" type=\"application/x-shockwave-flash\" width=\"468\" height=\"60\" wmode=\"transparent\" />');
}
function h_en() {
	document.writeln('<embed flashvars=\"link=#\" src=\"http://www.vtidgroup.com.vn/images/h_en.swf\" type=\"application/x-shockwave-flash\" width=\"468\" height=\"60\" wmode=\"transparent\" />');
}
function h_ja() {
	document.writeln('<embed flashvars=\"link=#\" src=\"http://www.vtidgroup.com.vn/images/h_ja.swf\" type=\"application/x-shockwave-flash\" width=\"468\" height=\"60\" wmode=\"transparent\" />');
}
function h_kr() {
	document.writeln('<embed flashvars=\"link=#\" src=\"http://www.vtidgroup.com.vn/images/h_kr.swf\" type=\"application/x-shockwave-flash\" width=\"468\" height=\"60\" wmode=\"transparent\"/>');
}
function h_cn() {
	document.writeln('<embed flashvars=\"link=#\" src=\"http://www.vtidgroup.com.vn/images/h_cn.swf\" type=\"application/x-shockwave-flash\" width=\"468\" height=\"60\" wmode=\"transparent\"/>');
}
function toggle( targetId )
{
	if (document.getElementById)
	{
		target = document.getElementById( targetId );
		if (target.style.display == "none")
		{
			target.style.display = "";
		}
		else
		{
			target.style.display = "none";
		}
	}
}